For red hair to be physically expressed in a person, that person needs to have two copies of the gene for red hair in their genotype. Returning Cubans boost island's real estate market. Journal of Medical Genetics. Everyone will have dark brown hair, brown eyes and faces bereft of orange freckles. Oh, there will be museums featuring redheads of the past. Genetic scientists warn that redheads are a dying breed; soon they will become extinct in the next years.